Feeding mechanism for type-writers.



No. 833,360. ,'PATENT'ED' OCT; 16', 190e. L. E. WLKBs. PBEMNG MEGHANISMEUR TYPE WRITERS.

APPLICATION FILED AUGJS, 1905.'I

Streuung;

.nm 0 9 l on, l TM C 0 ,D E T N E T .A P Uu K L Tl W E. L 0.. 6 no 3 30.0 .nu N

PBEDING MBGHANISM ma TYPHWRITE APPLICATION PLED AUG. 3, 1905.

2 SHEETS-SHEET 2.

Wbb/mama Q'. w] .m/ Y

- is'm for Type-Writers; and l do declare the rshown and described a topplan-view ci the machine,

`which is supported lonl Y vWriting mechanism Writing mechanism .upon bythewritm s PATENT Nonetot:.,

UNITED sfngrn LINCOLN n. y 'Witiins,` or HiLLse ono, oneens;

' ne.ese,ec. A

Application mea Augier, 1905. sei-e1 No. tiene;

Toa/J, whom, III; may concern: vor they Ina be adjustably securedthereto 'Be it known that l, LINCOLN E. WILKES, a in any suita lemanner.. i citizen ofthe United States, residing at Hillsl Midwaybetween the ends of the side bars boro, in the county oi Washington andState l 2 and journaled therein is a horizontallyedisci Oregon, haveinvented certain newl and posed shaft 5, on the opposite ends oi whichuseful Improvements in Feeding Meohanis iixedly mounted spur gear inions6,.

These pinions are adapted to mesii with the teeth of the rack-bars 3,whereby when said l'shaft is turned the rectan lar frame formed l bysaid rack-bars and tie cross-bars 4 is moved along the side bars 2 ofthe machine. Immediately above the shaft 5 and. supported at itsopposite ends by the side bars 2 is a strip oi platen 7, on which theleaves ci the book are adaptedto be drawn end upon which the type-heads8 of type-bars 9 are adapted to strike, thus forming the impression cithe type on said head upon the leaf of the book.

The inner sides of the cross-bars 4 of the rack-bar Jrame are providedwith suitable clamps 10, which areadapted to be engaged with the 'edgeof the book-leaf to be printed, and whereby said leaf is drawn overlthestrip of platen When said frame isy moved across the machine. inorder stretched taut and evenly held in'position oh the strip ciplaten,a tension device is provided, said 'tension device being here shown as aroller 1 2,whi ch is adapted to be arranfred in the fold of the leaf, asshown. The roller 12 is provided adjacent to its oppositeends withannular grooves 13, with `vwhich are adapted to be engaged hooks 14,said hooks being connected to the ends ci tension-.cords 15, which areadapted to be 'Wound at their opposite ends upon tensioni-drums 1d Thesedrums are providedwith, spiral springs 17, the tension of Whichisexerted to revolve the drums in a direction towind up the-cords 15.By' this arrangement the book-leai Will be evenly stretched across thevplaten-bar whilel being drawn over the latter by the movement oitherack-bar' frame, as hereinbeiore described. The hooks 14, cords 15,and-tensien-drums 16 are provided on each side of thel machine, so thatthe roller' may be applied at either side oi the platen-bar, thusproviding for the -movementof theiram'e in ioth directions to both`sides ci the leaf. When the rackfbar frame has been moved and the leafci" theiollowing to be a iull, clear, and exact description 'of' theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to feeding mechanism Jfor type-writers.v TheobJect of the invention is to improve the construction of the feedingmechanism in Letters Patent ci the United States No. 575,190, granted tome January 12, 1897. v

With the above and other objects in view the invention consists ofcertain novel icatures oiconstruction, combination, and arrangement ofparts, as will be hereinafterdescribed and claimed. ,e

in the accompanying drawings, Figure 1 is showing the Writing ymechanismleft oil` and a book in position tobe written on. Fig. 2 is a irontView. Fig.` 3 is a central longitudinal vertical sectional view of thesame. Fig. 4, isa similar view showing a modified construction offeeding mechanism for the tensionroller. 1

Referring more Yparticularly to the drawings, 1 denotes a stationarybase-plate, above itudinally-disposed side bars 2, upon whic are mountedthe of the machine, said being the same as shown and described in thepatent hereinbeiore referred to. On the base-plate 1 is adapted to beplaced a book to be written on. l

Slidably mounted on the upper edges -of the plates or side bars 2 is afeedingmechanism; by W -ich the leaves of the book are brought to itsproper position to be written mechanism before reierred to. `The Jfeeing mechanism consists oi a rectangular frame formed by parallelhorizontally-disposed rack-bars, 3, which are connected at "their4opposite ends by crossvbars 4. The cross-bars 4 maybe rigidly securedto the ends of the-rack-bars, as shown,

l l s l that the leaf may be IOO 1facilitate the printing oi hooks 14.0nthe opposite si shaft 5, one end ofsaid book drawn over the platen-stripfar enough to engage the' roller 12 with either side of said strip, theend of the line Will b'ecom leted, at which time .the mechanism isshifted to bring the parts in proper position for Writing the nextline.l

When the 'hooks 14 are en aged with the roller 12 on one side of the(platen-stri the e strip are engaged with the adjacent end bars 4 of therack-bar frame, the tension of springs controlling said latter hooksbeing exerted to move the frame toward this end of the machine, thusaiding in moving the leaf or sheet over the laten against the pull ofthe roller 12.

In ad ition to the above means for moving the rack-bar frame I mayemploy an onerating mechanism similar to that shown inthe patenthereinbefore referred to-that is, to mount a spiral spring 5 upon onelend of the sprin being secured to the shaft and the other to t e' frameofthe machine. Above the upper edge of and spaced from the bars 2 isarranged a uidestrip, between which and the upper e ge of the bars 2 thecross-bars 4 of the rack-bar frame are adapted to project, therebyguiding said frame, which will be moved in one direction by the unwindinof the spring, causing the rotation of the s aft5 and ears 6, which meshwith4 the rack-bars 3 o the frame. The rack-bar frame is manually movedin the opposite direction and restored toi its former position, vthismovement of the frame also winding up the spring 5 as will beunderstood. I

The rack-bar 3 on one side of the frame will be provided on its upperside with a series of ratchet-teeth 3'., .which correspond with theteeth 50 on the rack-bar 42 of the patent referred to herein,- and withthe ratchetteeth 3 and the rack-bar 3-'will ,be connected a controllingmechanism .for the rack-bar frame, the construction of which will be thesame as that shown in said patent, and an illustration and descriptionthereof is not deemed necessary the present instance. 'While .I haveshown andA described the lroller 12 as being held in positiony byten-`loyed for sion-cords, other means ma f be ein esire to imit mythispurpose, and' I do not self in this particular.

In order that the side'bars 2 of the machine maybe raised. and loweredto permit various sizes of books to be inserted beneath the feeding andprinting bars are supported upon vertically-disposed shafts20. Saidshafts 4are provided upper ends with reduced journals which bear insockets formed in the under side of said bars. llhe'shafts 20 rejectloosely through apertures formed. in tlie base-plated and are providedwith screw-threads upon which are lscrewed pinion-nuts `21, said nutsbeing swivshafts 'will of the p atensimultaneously turned,

pression-strip by lthereby move said frame and the leaf or mechanism,said at their were eled in the late 1 in any whereby W :en the same areturned the be screwed upward-ly or downwardly, thus raisin or loweringthe supporting-bars 2. '1n or ervthat the shafts 20 will be movedsimultaneously to uniformly raise the side bars, a sprocket-chain 22 ispassed around the teeth on said pinion-nuts, Whereby when the chain ismoved said nuts will be supporting-plates'are moved together and to thesame level.

Having thus described rny ihvention,-What I claim as new, and desiretosecure by Letters Patent, is-'` 1. lAvtype-writing-inaclfiine feedingmechanism, having a book-support, a feeding element movable Aover, thebooksupport, a platen support over said book support, means to' attachthe leaf of a book on said sup ort to said feedin element, and means toeepfsaid leaf un leaf is moving over the platen, substantially asdescribed. y e ,f v 2. A feeding mechanism for type-writing machinesIcomprising a base, supportingbars arranged on said so thatv both ofsaidbase, an impressionsuitable manner, A

l er tension while said strip secured to said supporting-bars, a rackbarframe slidably mounted on said bars, a

revolubly-mounted drive-shaft, gear-pinions' fixed on said shaft toengage and shift said rack-bar frame, means to attach the leafor sheetto be writtten on with the ends of said frame, and a tension device tohold said'leaf or sheet taut while being drawn over said im- ,l

described.

3.' A feeding mechanism fer type-meng machines comprisin a base,supportingars arranged, on said base, an impressions rip secured tosaidsupporting-bars, a 4rackbai' frame slidably mounted on said bars, arevolubly-mounted drive-shaft, gear-pinions fixed on said shaft toengage and-shift said rack-bar frame, means to attach the leaf or sheetto be written on with the frame, means to operate said drive-shaft' andsaid sheet or leaf taut, and means to control` said tension-roller,substantially sts-described.

4. A feeding mechanism machines comprising a base,

over the platen-strip, a tension-roller to supporting-bars said frame,substantially asA ends of said IOS- IIO

for type-Writing arranged on said` base, -an impression-strip se-,.'

cured to said supportingars, frame slidably mounted on said bars, arevolubly-mounted drive-shaft, earinionsiixed on said shaft to engageanc shi t said raclg bar frame,l means to attach 'the leaf or sheet tobe written on with the end-s of said frame, means to operate saiddrive-'shaft and theresaid platen-strip and below the writi mechalrack-bai' Iig;- by move said'frame and the leaf'orpageover,I4 r' gegeseid leaf of sheet, revolubly-mounted in testimony' fvyheeof I havehereunto set V spuug Windin -d1ums, tenslon-cords loosely my hand inpresence of two subscribing xo connected et one end to the ends of seidtenlnesses. sion-miler and at their opposite ends to seid L 'NCOLN EWILKES' Windngdrums whereby sadel or sheet.

will be held taut whie being moved over the Witnesses.

l v psten by said rack-bar frame, subsantially 'D. L, HALEY,

es desorbed. 1 T. HOGAN.

